Would the calculation you performed in Question 3 still be valid if the salaries in question are NOT normally distributed? Why?

Question

Accepted Answer

Yes, because   , so Central Limit Theorem implies that the sampling distribution of the mean is approximately normal.

Answer

Yes, because   , so Central Limit Theorem implies that the sampling distribution of the mean is normal.

Answer

We do not have enough information to decide.

Answer

No, if    is not normal, then the sampling distribution of the mean may not be normal.

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